import turtle as t
import random as r

t.speed(0)
t.pencolor('green')
for i in range(500):
    t.circle(i,30)
for j in range(100):
    x = r.randint(-400,400)
    y = r.randint(-400,400)
    t.penup()
    t.goto(x,y)
    t.pendown()
    t.fillcolor('green')
    t.begin_fill()
    f = r.randint(3,8)
    for k in range(5):
        t.forward(f)
        t.right(144)
    t.end_fill()
t.hideturtle()
t.done()
